create custom IfcPolygonalFaceSet wall using xbim library - xbim

Question

I want to create polygonfaceset wall using xbim toolkit library. Please let me know what I am doing wrong. It will be great help to me if anybody can provide sample code or some approach regarding polygonfaceset wall.
Below I provide scrennshot and samplecode.
static private IfcWallStandardCase CreateWall(IfcStore model, double length, double width, double height)
{
//
//begin a transaction
using (var txn = model.BeginTransaction("Create Wall"))
{
var wall = model.Instances.New();
wall.Name = "A Standard rectangular wall";
//represent wall as a rectangular profile
var rectProf = model.Instances.New<IfcRectangleProfileDef>();
rectProf.ProfileType = IfcProfileTypeEnum.AREA;
rectProf.XDim = width;
rectProf.YDim = length;
var insertPoint = model.Instances.New<IfcCartesianPoint>();
insertPoint.SetXY(0, 400); //insert at arbitrary position
rectProf.Position = model.Instances.New<IfcAxis2Placement2D>();
rectProf.Position.Location = insertPoint;
var polyfaceset = model.Instances.New<IfcPolygonalFaceSet>();
var coordinates2 = model.Instances.New<IfcIndexedPolygonalFace>();
//var coordinates = model.Instances.New<IfcCartesianPointList3D>(pl => {
// pl.CoordList.GetAt(0).AddRange(new IfcLengthMeasure[] { 0, 0, 0 });
// pl.CoordList.GetAt(1).AddRange(new IfcLengthMeasure[] { 1, 0, 0 });
// pl.CoordList.GetAt(2).AddRange(new IfcLengthMeasure[] { 0, 1, 0 });
// pl.CoordList.GetAt(3).AddRange(new IfcLengthMeasure[] { 0, 0, 1 });
//});
polyfaceset.Closed = true;
polyfaceset.Coordinates = model.Instances.New<IfcCartesianPointList3D>(pl => {
pl.CoordList.GetAt(0).AddRange(new IfcLengthMeasure[] { 0, 0, 1000 });
pl.CoordList.GetAt(1).AddRange(new IfcLengthMeasure[] { 3000, 0, 1000 });
pl.CoordList.GetAt(2).AddRange(new IfcLengthMeasure[] { 3000, 2000, 10000 });
pl.CoordList.GetAt(3).AddRange(new IfcLengthMeasure[] { 1000, 3000, 1000 });
pl.CoordList.GetAt(4).AddRange(new IfcLengthMeasure[] { 0, 2000, 1000 });
});
//model as a swept area solid
var body = model.Instances.New<IfcExtrudedAreaSolid>();
body.Depth = height;
body.SweptArea = rectProf;
body.ExtrudedDirection = model.Instances.New<IfcDirection>();
body.ExtrudedDirection.SetXYZ(0, 0, 1);
//parameters to insert the geometry in the model
var origin = model.Instances.New<IfcCartesianPoint>();
origin.SetXYZ(0, 0, 0);
body.Position = model.Instances.New<IfcAxis2Placement3D>();
body.Position.Location = origin;
//Create a Definition shape to hold the geometry
var shape = model.Instances.New<IfcShapeRepresentation>();
var modelContext = model.Instances.OfType<IfcGeometricRepresentationContext>().FirstOrDefault();
shape.ContextOfItems = modelContext;
shape.RepresentationType = "SweptSolid";
shape.RepresentationIdentifier = "Body";
shape.Items.Add(body);
//create visual style
model.Instances.New<IfcStyledItem> (styleItem => {
styleItem.Item = body;
styleItem.Styles.Add(model.Instances.New<IfcSurfaceStyle>(style => {
style.Side = IfcSurfaceSide.BOTH;
style.Styles.Add(model.Instances.New<IfcSurfaceStyleRendering>(rendering => {
rendering.SurfaceColour = model.Instances.New<IfcColourRgb>(colour => {
colour.Name = "Orange";
colour.Red = 1.0;
colour.Green = 0.5;
colour.Blue = 0.0;
});
}));
}));
});
//Create a Product Definition and add the model geometry to the wall
var rep = model.Instances.New<IfcProductDefinitionShape>();
rep.Representations.Add(shape);
wall.Representation = rep;
//now place the wall into the model
var lp = model.Instances.New<IfcLocalPlacement>();
var ax3D = model.Instances.New<IfcAxis2Placement3D>();
ax3D.Location = origin;
ax3D.RefDirection = model.Instances.New<IfcDirection>();
ax3D.RefDirection.SetXYZ(0, 1, 0);
ax3D.Axis = model.Instances.New<IfcDirection>();
ax3D.Axis.SetXYZ(0, 0, 1);
lp.RelativePlacement = ax3D;
wall.ObjectPlacement = lp;
// Where Clause: The IfcWallStandard relies on the provision of an IfcMaterialLayerSetUsage
var ifcMaterialLayerSetUsage = model.Instances.New<IfcMaterialLayerSetUsage>();
var ifcMaterialLayerSet = model.Instances.New<IfcMaterialLayerSet>();
var ifcMaterialLayer = model.Instances.New<IfcMaterialLayer>();
ifcMaterialLayer.LayerThickness = 10;
ifcMaterialLayerSet.MaterialLayers.Add(ifcMaterialLayer);
ifcMaterialLayerSetUsage.ForLayerSet = ifcMaterialLayerSet;
ifcMaterialLayerSetUsage.LayerSetDirection = IfcLayerSetDirectionEnum.AXIS2;
ifcMaterialLayerSetUsage.DirectionSense = IfcDirectionSenseEnum.NEGATIVE;
ifcMaterialLayerSetUsage.OffsetFromReferenceLine = 150;
// Add material to wall
var material = model.Instances.New<IfcMaterial>();
material.Name = "some material";
var ifcRelAssociatesMaterial = model.Instances.New<IfcRelAssociatesMaterial>();
ifcRelAssociatesMaterial.RelatingMaterial = material;
ifcRelAssociatesMaterial.RelatedObjects.Add(wall);
ifcRelAssociatesMaterial.RelatingMaterial = ifcMaterialLayerSetUsage;
// IfcPresentationLayerAssignment is required for CAD presentation in IfcWall or IfcWallStandardCase
var ifcPresentationLayerAssignment = model.Instances.New<IfcPresentationLayerAssignment>();
ifcPresentationLayerAssignment.Name = "some ifcPresentationLayerAssignment";
ifcPresentationLayerAssignment.AssignedItems.Add(shape);
// linear segment as IfcPolyline with two points is required for IfcWall
var ifcPolyline = model.Instances.New<IfcPolyline>();
var startPoint = model.Instances.New<IfcCartesianPoint>();
var midpoint = model.Instances.New<IfcCartesianPoint>();
var midpoint2 = model.Instances.New<IfcCartesianPoint>();
startPoint.SetXYZ(3000, 0, 1000);
midpoint.SetXYZ(3000, 2000, 1000);
midpoint2.SetXYZ(1000, 3000, 1000);
var endPoint = model.Instances.New<IfcCartesianPoint>();
endPoint.SetXYZ(0, 2000, 1000);
ifcPolyline.Points.Add(startPoint);
ifcPolyline.Points.Add(midpoint);
ifcPolyline.Points.Add(midpoint2);
ifcPolyline.Points.Add(endPoint);
var shape2D = model.Instances.New<IfcShapeRepresentation>();
shape2D.ContextOfItems = modelContext;
shape2D.RepresentationIdentifier = "Axis";
shape2D.RepresentationType = "Curve2D";
shape2D.Items.Add(ifcPolyline);
rep.Representations.Add(shape2D);
txn.Commit();
return wall;
}
}
This CreateWall function create Ifc wall. Please go throw it above code.